एपीए उद्धरण

Warrington, V. A. (1974). Protective relays: Their theory and practice (2nd ed.). Chapman and Hall.

शिकागो स्टाइल उद्धरण

Warrington, Van A.R.C. Protective Relays: Their Theory and Practice. 2nd ed. London: Chapman and Hall, 1974.

एमएलए उद्धरण

Warrington, Van A.R.C. Protective Relays: Their Theory and Practice. 2nd ed. Chapman and Hall, 1974.